Primer paso de la investigacion. Se aportan el .apk, las carpetas con el apk extraido y el apk descompilado. El archivo API_DOCUMENTATION.md es un archivo donde se anotaran los descubrimientos del funcionamiento de la API, y los .py son scripts para probar la funcionalidad de la API con los métodos que vayamos encontrando. Finalmente, los archivos .js son scripts de Frida para extraer informacion de la APP durante la ejecucion.

apk_decompiled/sources/kotlin/ranges/LongRange.java

@@ -0,0 +1,101 @@
+package kotlin.ranges;
+
+import kotlin.Deprecated;
+import kotlin.ExperimentalStdlibApi;
+import kotlin.Metadata;
+import kotlin.SinceKotlin;
+import kotlin.WasExperimental;
+import kotlin.jvm.internal.DefaultConstructorMarker;
+import kotlin.jvm.internal.LongCompanionObject;
+
+@Metadata(d1 = {"\u00006\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0018\u0002\n\u0002\u0010\t\n\u0002\u0018\u0002\n\u0002\b\u000b\n\u0002\u0010\u000b\n\u0002\b\u0003\n\u0002\u0010\u0000\n\u0000\n\u0002\u0010\b\n\u0002\b\u0002\n\u0002\u0010\u000e\n\u0002\b\u0002\u0018\u0000 \u001a2\u00020\u00012\b\u0012\u0004\u0012\u00020\u00030\u00022\b\u0012\u0004\u0012\u00020\u00030\u0004:\u0001\u001aB\u0015\u0012\u0006\u0010\u0005\u001a\u00020\u0003\u0012\u0006\u0010\u0006\u001a\u00020\u0003¢\u0006\u0002\u0010\u0007J\u0011\u0010\u000f\u001a\u00020\u00102\u0006\u0010\u0011\u001a\u00020\u0003H\u0096\u0002J\u0013\u0010\u0012\u001a\u00020\u00102\b\u0010\u0013\u001a\u0004\u0018\u00010\u0014H\u0096\u0002J\b\u0010\u0015\u001a\u00020\u0016H\u0016J\b\u0010\u0017\u001a\u00020\u0010H\u0016J\b\u0010\u0018\u001a\u00020\u0019H\u0016R\u001a\u0010\b\u001a\u00020\u00038VX\u0097\u0004¢\u0006\f\u0012\u0004\b\t\u0010\n\u001a\u0004\b\u000b\u0010\fR\u0014\u0010\u0006\u001a\u00020\u00038VX\u0096\u0004¢\u0006\u0006\u001a\u0004\b\r\u0010\fR\u0014\u0010\u0005\u001a\u00020\u00038VX\u0096\u0004¢\u0006\u0006\u001a\u0004\b\u000e\u0010\f¨\u0006\u001b"}, d2 = {"Lkotlin/ranges/LongRange;", "Lkotlin/ranges/LongProgression;", "Lkotlin/ranges/ClosedRange;", "", "Lkotlin/ranges/OpenEndRange;", "start", "endInclusive", "(JJ)V", "endExclusive", "getEndExclusive$annotations", "()V", "getEndExclusive", "()Ljava/lang/Long;", "getEndInclusive", "getStart", "contains", "", "value", "equals", "other", "", "hashCode", "", "isEmpty", "toString", "", "Companion", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+/* loaded from: classes3.dex */
+public final class LongRange extends LongProgression implements ClosedRange<Long>, OpenEndRange<Long> {
+
+    /* renamed from: Companion, reason: from kotlin metadata */
+    public static final Companion INSTANCE = new Companion(null);
+    private static final LongRange EMPTY = new LongRange(1, 0);
+
+    @Metadata(d1 = {"\u0000\u0014\n\u0002\u0018\u0002\n\u0002\u0010\u0000\n\u0002\b\u0002\n\u0002\u0018\u0002\n\u0002\b\u0003\b\u0086\u0003\u0018\u00002\u00020\u0001B\u0007\b\u0002¢\u0006\u0002\u0010\u0002R\u0011\u0010\u0003\u001a\u00020\u0004¢\u0006\b\n\u0000\u001a\u0004\b\u0005\u0010\u0006¨\u0006\u0007"}, d2 = {"Lkotlin/ranges/LongRange$Companion;", "", "()V", "EMPTY", "Lkotlin/ranges/LongRange;", "getEMPTY", "()Lkotlin/ranges/LongRange;", "kotlin-stdlib"}, k = 1, mv = {1, 9, 0}, xi = 48)
+    /* loaded from: classes3.dex */
+    public static final class Companion {
+        public /* synthetic */ Companion(DefaultConstructorMarker defaultConstructorMarker) {
+            this();
+        }
+
+        public final LongRange getEMPTY() {
+            return LongRange.EMPTY;
+        }
+
+        private Companion() {
+        }
+    }
+
+    public LongRange(long j4, long j5) {
+        super(j4, j5, 1L);
+    }
+
+    @Deprecated(message = "Can throw an exception when it's impossible to represent the value with Long type, for example, when the range includes MAX_VALUE. It's recommended to use 'endInclusive' property that doesn't throw.")
+    @SinceKotlin(version = "1.9")
+    @WasExperimental(markerClass = {ExperimentalStdlibApi.class})
+    public static /* synthetic */ void getEndExclusive$annotations() {
+    }
+
+    /* JADX WARN: Multi-variable type inference failed */
+    @Override // kotlin.ranges.ClosedRange, kotlin.ranges.OpenEndRange
+    public /* bridge */ /* synthetic */ boolean contains(Comparable comparable) {
+        return contains(((Number) comparable).longValue());
+    }
+
+    @Override // kotlin.ranges.LongProgression
+    public boolean equals(Object other) {
+        if (!(other instanceof LongRange)) {
+            return false;
+        }
+        if (isEmpty() && ((LongRange) other).isEmpty()) {
+            return true;
+        }
+        LongRange longRange = (LongRange) other;
+        return getFirst() == longRange.getFirst() && getLast() == longRange.getLast();
+    }
+
+    @Override // kotlin.ranges.LongProgression
+    public int hashCode() {
+        if (isEmpty()) {
+            return -1;
+        }
+        return (int) ((31 * (getFirst() ^ (getFirst() >>> 32))) + (getLast() ^ (getLast() >>> 32)));
+    }
+
+    @Override // kotlin.ranges.LongProgression, kotlin.ranges.ClosedRange, kotlin.ranges.OpenEndRange
+    public boolean isEmpty() {
+        return getFirst() > getLast();
+    }
+
+    @Override // kotlin.ranges.LongProgression
+    public String toString() {
+        return getFirst() + ".." + getLast();
+    }
+
+    public boolean contains(long value) {
+        return getFirst() <= value && value <= getLast();
+    }
+
+    @Override // kotlin.ranges.OpenEndRange
+    public Long getEndExclusive() {
+        if (getLast() != LongCompanionObject.MAX_VALUE) {
+            return Long.valueOf(getLast() + 1);
+        }
+        throw new IllegalStateException("Cannot return the exclusive upper bound of a range that includes MAX_VALUE.");
+    }
+
+    @Override // kotlin.ranges.ClosedRange
+    public Long getEndInclusive() {
+        return Long.valueOf(getLast());
+    }
+
+    @Override // kotlin.ranges.ClosedRange, kotlin.ranges.OpenEndRange
+    public Long getStart() {
+        return Long.valueOf(getFirst());
+    }
+}